LangChain is an open source framework with a pre-built agent architecture and integrations for any model or tool — so you can build agents that adapt as fast as the ecosystem evolves
LangChain (JavaScript docs) API profile
API styles
Developer docs
Webhooks
Webhooks management API
Sandbox environment
Authentication
Identity protocols
SSO / Social login
OAuth playground
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GraphQL playground
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API Explorer
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Postman / Insomnia collections
OpenAPI/Swagger specs
Free developer account
App listing requirements
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Pagination style
CLI
Query Language
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Custom object support
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Stackoverflow tags
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Integrations
Ecosystem
API pricing
API rate limits
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API changelog
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Status page
Tutorials
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Samples & examples
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Base endpoint
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GraphQL endpoint
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IDE Extensions
Estimated developers
Estimated customers
Estimated users
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